What is difference between poker and Texas hold em?

Texas Holdem is a form of poker.

Poker is the main card game .

---------------------

Additional information

In some areas of the US, the word "Poker" specifically refers to a poker game called Five Card Draw.

A single deck of 52 cards (no Jokers) is used for each of these games.

In Five Card Draw each player is dealt 5 cards. The cards are not shown to the opponents. The players bet on these 5 cards. The players then have one opportunity to change cards (house rules vary on how many cards can be changed out from a maximum of 3 to all 5) followed by another round of betting. Then the cards are revealed.

There are two other popular poker games called 5 card stud and 7 card stud.

5 card stud deals one card face down (Down Card) and one card face up to each player. The players can look at their own down card. There is one round of betting. Then each player is dealt another card and there is another round of betting. This continues through the 5th card when the down card is revealed.

7 card stud works the same as its 5 card counterpart except each player is dealt two down cards and one card facing up before the betting begins. The seventh card can be dealt up or down depending on house rules.

7 Card Low-Hold is the same as seven card stud except the card with the lowest value in the "down" cards and all cards in that players hand with the same value are wild (can be assigned any value)

Texas Hold-em is a variation of seven card stud with two cards down for each player with a round of betting followed by three community cards and another round of betting. Then two more rounds of betting after each of the last two community cards are dealt. Hold-em's biggest advantage to all the other variations of Poker is one deck of cards can service up to 23 players can take part (22 players if "burn" cards are used) making for huge pots. However the games are generally limited to 8

In all forms of Poker EXCEPT Texas Hold-Em, there is no "All-In" bet. The All-in bet" allows a player to bet the amount of money they have left on the table and prevents the opponent from raising the bet. In "real" poker, if the players runs out of money in the middle of a hand and cannot secure credit or a backer to cover a raised wager, they are out of the hand and lose the money they have already placed in the pot. See the movie "Big Hand for a Little Lady" for a comical practical explanation.